(function () {
    var headerElem = document.querySelector(".header");
    if (headerElem) {
        var backElem = document.getElementById("back-95516");
        if (backElem) {
            return;
        }
        var css = ".header{position:relative;}#back-95516 {z-index:2000;position: absolute;display: inline-block;color: #333;top: 0;left: 0;width: 44px;height: 44px;}#back-95516:before{border: #fff solid 3px;position: absolute;left: 15px;top: 15px;display: block;content: ' ';background-size: 12px, auto;width: 12px;height: 12px;border-top: none;border-right: none;-webkit-transform: rotate(45deg);transform: rotate(45deg);}";
        var headElem = document.head || document.getElementsByTagName('head')[0];
        var styleElem = document.createElement('style');
        styleElem.type = 'text/css';
        if (styleElem.styleSheet) {
            styleElem.styleSheet.cssText = css;
        } else {
            styleElem.appendChild(document.createTextNode(css));
        }
        headElem.appendChild(styleElem);

        backElem = document.createElement('a');
        backElem.id = 'back-95516';
        headerElem.appendChild(backElem);
        backElem.addEventListener('click', function (e) {
            plus.webview.currentWebview().close('auto');
        }, true);
        document.addEventListener('plusready', function () {
            plus.key.addEventListener('backbutton', function () {
                plus.webview.currentWebview().close('auto');
            })
        });
    }

})();